.Ocean Modelling for Beginners Phần 10 potx

160 6 Rotational Effects

Fig. 6.26 Exercise 21. Shape of the density interface after 10 days of simulation

Fig. 6.27 Exercise 21. Currents (arrows, averaged over 2×2 grid cells) and Eulerian tracer concen￾tration (contours) in the top layer after 10 and 12.5 days of simulation. Cross-frontal fl w attains

speeds of 50 cm/s

of this instability, the front starts to meander forming alternating zones of positive

and negative relative vorticity (Fig. 6.27). Baroclinic eddies appear soon after this

mixing whereby cyclonic eddies remain centered along the axis of the front while

anticyclonic eddies are moved away from the frontal axis. The diameter of eddies